Acme ACME Signal whistle Tornado 2000

With its special design (without a ball), the Tornado signal whistle produces high-frequency tones that penetrate even the loudest background noise and low-frequency tones that are very audible over long distances. Unmatched and now appreciated not only in rescue operations (S.O.L.A.S.) as an emergency signal and means of communication but also at sporting events of all kinds, e.g., in the Champions League (F.I.F.A.). Naturally waterproof. - Color: Neon orange - Material: Plastic Dimensions: 5.0 x 2.2 x 2.2 cm (WxHxD) Weight: 10 g Warning: Not a toy!